I installed gas springs for both the hood and the trunk on my E-M. I got them from a local company (Van Tech). The springs I used are Stabilus Lift-O-Mat
hood - 752924
trunk - 1421EM
I would use a slightly stronger spring for the hood if I were to do it again.
Here is a link to their website:
http://www.stabilus.com/frameset.asp...site=menue.asp